Rufus 4.15 (Build 2396)

* Add SquashFS file system detection and update files DB to latest.

.github/workflows/codeql.yml

@@ -41,7 +41,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v6
+      uses: actions/checkout@v7
 
     - name: Initialize CodeQL
       uses: github/codeql-action/init@v4

.github/workflows/coverity.yml

@@ -28,7 +28,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v6
+      uses: actions/checkout@v7
       with:
         fetch-depth: 0
         submodules: recursive

.github/workflows/mingw.yml

@@ -54,7 +54,7 @@ jobs:
           upx
 
     - name: Checkout repository
-      uses: actions/checkout@v6
+      uses: actions/checkout@v7
       with:
         fetch-depth: 0
         submodules: recursive

.github/workflows/setup.yml

@@ -19,7 +19,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v6
+      uses: actions/checkout@v7
 
     - name: Add MSBuild to PATH
       uses: microsoft/setup-msbuild@v3

.github/workflows/vs2026.yml

@@ -40,7 +40,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v6
+      uses: actions/checkout@v7
       with:
         fetch-depth: 0
         submodules: recursive

.vs/bled.vcxproj

@@ -162,7 +162,7 @@
       <WarningLevel>Level3</WarningLevel>
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>_OFF_T_DEFINED;_off_t=__int64;off_t=_off_t;_FILE_OFFSET_BITS=64;_CRTDBG_MAP_ALLOC;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>BLED_EXPECT_DISK_IMAGE;_OFF_T_DEFINED;_off_t=__int64;off_t=_off_t;_FILE_OFFSET_BITS=64;_CRTDBG_MAP_ALLOC;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
       <AdditionalIncludeDirectories>..\src</AdditionalIncludeDirectories>
       <CompileAs>CompileAsC</CompileAs>
@@ -181,7 +181,7 @@
       <WarningLevel>Level3</WarningLevel>
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>_OFF_T_DEFINED;_off_t=__int64;off_t=_off_t;_FILE_OFFSET_BITS=64;_CRTDBG_MAP_ALLOC;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>BLED_EXPECT_DISK_IMAGE;_OFF_T_DEFINED;_off_t=__int64;off_t=_off_t;_FILE_OFFSET_BITS=64;_CRTDBG_MAP_ALLOC;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
       <AdditionalIncludeDirectories>..\src</AdditionalIncludeDirectories>
       <AdditionalOptions>/utf-8 %(AdditionalOptions)</AdditionalOptions>
@@ -200,7 +200,7 @@
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
       <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>_OFF_T_DEFINED;_off_t=__int64;off_t=_off_t;_FILE_OFFSET_BITS=64;_CRTDBG_MAP_ALLOC;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>BLED_EXPECT_DISK_IMAGE;_OFF_T_DEFINED;_off_t=__int64;off_t=_off_t;_FILE_OFFSET_BITS=64;_CRTDBG_MAP_ALLOC;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
       <AdditionalIncludeDirectories>..\src</AdditionalIncludeDirectories>
       <CompileAs>CompileAsC</CompileAs>
@@ -217,7 +217,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <ClCompile>
       <WarningLevel>Level3</WarningLevel>
-      <PreprocessorDefinitions>_OFF_T_DEFINED;_off_t=__int64;off_t=_off_t;_FILE_OFFSET_BITS=64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>BLED_EXPECT_DISK_IMAGE;_OFF_T_DEFINED;_off_t=__int64;off_t=_off_t;_FILE_OFFSET_BITS=64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
       <AdditionalIncludeDirectories>..\src</AdditionalIncludeDirectories>
       <CompileAs>CompileAsC</CompileAs>
@@ -238,7 +238,7 @@
     <ClCompile>
       <WarningLevel>Level3</WarningLevel>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>_OFF_T_DEFINED;_off_t=__int64;off_t=_off_t;_FILE_OFFSET_BITS=64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>BLED_EXPECT_DISK_IMAGE;_OFF_T_DEFINED;_off_t=__int64;off_t=_off_t;_FILE_OFFSET_BITS=64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
       <AdditionalIncludeDirectories>..\src</AdditionalIncludeDirectories>
       <AdditionalOptions>/utf-8 %(AdditionalOptions)</AdditionalOptions>
@@ -257,7 +257,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <ClCompile>
       <WarningLevel>Level3</WarningLevel>
-      <PreprocessorDefinitions>_OFF_T_DEFINED;_off_t=__int64;off_t=_off_t;_FILE_OFFSET_BITS=64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>BLED_EXPECT_DISK_IMAGE;_OFF_T_DEFINED;_off_t=__int64;off_t=_off_t;_FILE_OFFSET_BITS=64;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
       <AdditionalIncludeDirectories>..\src</AdditionalIncludeDirectories>
       <CompileAs>CompileAsC</CompileAs>

ChangeLog.txt

@@ -1,12 +1,12 @@
-o Version 4.15 (2026.06.??)
+o Version 4.15 (2026.06.30)
     Add RISC-V 64 support to UEFI:NTFS
-    Improve the guards for using the "silent" option
+    Improve the guards for using the "silent" Windows installation option
     Improve the ability to cancel during write retries
     Improve progress reporting for compressed image extraction
     Fix unrestricted XML entity expansion and integer overflow in ezxml parser (courtesy of Eric Sadowski)
     Fix "silent" Windows installation failing at 75% in most cases
     Fix a crash during boot when using UEFI:NTFS on Snapdragon X based ARM64 platforms
-    Fix the first WUE option always being checked by default
+    Fix first WUE option always being checked by default
     Fix an infinite loop when using Windows ISOs that contain multiple WIMs
     Fix "Enable runtime UEFI media validation" checkbox not always being properly enabled
     Other WUE improvements/fixes for OneDrive removal and username validation (with thanks to @christian8641)

res/appstore/listing/listing.csv

@@ -65,7 +65,7 @@
 • Pakeitimų žurnalas: https://github.com/pbatard/rufus/blob/master/ChangeLog.txt","Rufus adalah utiliti yang membantu memformat dan mencipta pemacu kilat USB boot, seperti pemacu pen/kekunci USB, kayu memori, dan lain-lain.
 • Laman rasmi: https://rufus.ie
 • Kod Sumber: https://github.com/pbatard/rufus
-• ChangeLog: https://github.com/pbatard/rufus/blob/master/ChangeLog.txt","Rufus er et verktøy som hjelper til med å formatere og lage oppstartbare USB-stasjoner, for eksempel USB-minnepinner, USB-harddisker, og lignende.
+• Log Perubahan: https://github.com/pbatard/rufus/blob/master/ChangeLog.txt","Rufus er et verktøy som hjelper til med å formatere og lage oppstartbare USB-stasjoner, for eksempel USB-minnepinner, USB-harddisker, og lignende.
 • Offisiell webside: https://rufus.ie
 • Kildekode: https://github.com/pbatard/rufus
 • Endringslogg: https://github.com/pbatard/rufus/blob/master/ChangeLog.txt","Rufus ابزاری است که به فرمت و ایجاد درایوهای فلش USB قابل بوت، مانند کلیدهای USB/pendrives، مموری استیک ها و غیره به شما کمک می کند.
@@ -114,19 +114,17 @@
 • Trang web chính thức: https://rufus.ie
 • Mã nguồn: https://github.com/pbatard/rufus
 • Nhật ký thay đổi: https://github.com/pbatard/rufus/blob/master/ChangeLog.txt"
-"ReleaseNotes","3","Text","• Windows User Experience improvements:
-•   - Add a ""Quality of Life"" option, to disable Teams, Outlook, Copilot and other Microsoft forced nuisances
-•   - Add a Silent installation option, that automatically, and WITHOUT PROMPT, installs Windows on the first detected disk
-•   - Add an option to copy 'SkuSiPolicy.p7b' to the ESP on installation (please refer to KB5042562 for more info)
-•   - Add tooltips for all the dialog options
-• Add limited support for El-Torito UEFI image extraction (Mostly for Dell BIOS update ISOs)
-• Improve error report when the user tries to use an image that resides on the target drive
-• Improve the UEFI:NTFS partition label to make the install media more explicit during Windows Setup disk partitioning
-• Improve support for Bazzite and other Fedora derivatives that don't follow EFI conventions
-• Improve detection and exclusion of the new Bitdefender hidden VHDs
-• Improve reporting of GRUB and Isolinux MBRs
-• Fix potential errors during creation of Windows To Go media, due to the use of new versions of bcdboot
-• Fix errors with local accounts that start or end with whitespaces",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
+"ReleaseNotes","3","Text","• Add RISC-V 64 support to UEFI:NTFS
+• Improve the guards for using the ""silent"" Windows installation option
+• Improve the ability to cancel during write retries
+• Improve progress reporting for compressed image extraction
+• Fix unrestricted XML entity expansion and integer overflow in ezxml parser (courtesy of Eric Sadowski)
+• Fix ""silent"" Windows installation failing at 75% in most cases
+• Fix a crash during boot when using UEFI:NTFS on Snapdragon X based ARM64 platforms
+• Fix first WUE option always being checked by default
+• Fix an infinite loop when using Windows ISOs that contain multiple WIMs
+• Fix ""Enable runtime UEFI media validation"" checkbox not always being properly enabled
+• Other WUE improvements/fixes for OneDrive removal and username validation (with thanks to @christian8641)",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
 "Title","4","Text","Rufus",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
 "ShortTitle","5","Text","",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
 "SortTitle","6","Text","",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

src/bled/Makefile.am

@@ -7,4 +7,4 @@ libbled_a_SOURCES = bled.c bled_size.c crc32.c data_align.c data_extract_all.c d
   init_handle.c open_transformer.c seek_by_jump.c seek_by_read.c xz_dec_bcj.c xz_dec_lzma2.c xz_dec_stream.c \
   xxhash.c zstd_common.c zstd_decompress.c zstd_decompress_block.c zstd_ddict.c zstd_entropy_common.c \
   zstd_error_private.c
-libbled_a_CFLAGS = $(AM_CFLAGS) -I$(srcdir)/.. -Wno-undef -Wno-strict-aliasing
+libbled_a_CFLAGS = $(AM_CFLAGS) -I$(srcdir)/.. -DBLED_EXPECT_DISK_IMAGE -Wno-undef -Wno-strict-aliasing

src/bled/Makefile.in

@@ -285,7 +285,7 @@ libbled_a_SOURCES = bled.c bled_size.c crc32.c data_align.c data_extract_all.c d
   xxhash.c zstd_common.c zstd_decompress.c zstd_decompress_block.c zstd_ddict.c zstd_entropy_common.c \
   zstd_error_private.c
 
-libbled_a_CFLAGS = $(AM_CFLAGS) -I$(srcdir)/.. -Wno-undef -Wno-strict-aliasing
+libbled_a_CFLAGS = $(AM_CFLAGS) -I$(srcdir)/.. -DBLED_EXPECT_DISK_IMAGE -Wno-undef -Wno-strict-aliasing
 all: all-am
 
 .SUFFIXES:

src/bled/bb_archive.h

@@ -254,6 +254,9 @@ typedef struct transformer_state_t {
 	} magic;
 } transformer_state_t;
 
+typedef int64_t(*unpacker_t)(transformer_state_t* xstate);
+typedef int64_t(*get_uncompressed_size_t)(int fd);
+int64_t get_uncompressed_size(int fd, int type);
 void init_transformer_state(transformer_state_t *xstate) FAST_FUNC;
 ssize_t transformer_write(transformer_state_t *xstate, const void *buf, size_t bufsize) FAST_FUNC;
 ssize_t xtransformer_write(transformer_state_t *xstate, const void *buf, size_t bufsize) FAST_FUNC;

src/bled/bled.c

@@ -15,9 +15,6 @@
 #include "bb_archive.h"
 #include "bled.h"
 
-typedef int64_t(*unpacker_t)(transformer_state_t *xstate);
-extern int64_t get_uncompressed_size(int fd, int type);
-
 /* Globals */
 smallint bb_got_signal;
 uint64_t bb_total_rb, bb_total_wb;
@@ -303,6 +300,34 @@ int64_t bled_uncompress_from_buffer_to_buffer(const char* src, const size_t src_
 	return ret;
 }
 
+/* Get the decompressed size of file 'src', compressed using 'type' */
+int64_t bled_get_uncompressed_size(const char* src, int type)
+{
+	int fd = -1;
+	int64_t ret = -1;
+
+	if (!bled_initialized) {
+		bb_error_msg("The library has not been initialized");
+		return -1;
+	}
+
+	if ((type < 0) || (type >= BLED_COMPRESSION_MAX)) {
+		bb_error_msg("Unsupported compression format");
+		goto err;
+	}
+
+	fd = _openU(src, _O_RDONLY | _O_BINARY, 0);
+	if (fd < 0)
+		return -1;
+
+	ret = get_uncompressed_size(fd, type);
+
+err:
+	if (fd > 0)
+		_close(fd);
+	return ret;
+}
+
 /* Initialize the library.
  * When the parameters are not NULL or zero you can:
  * - specify the buffer size to use (must be larger than 256KB and a power of two)

src/bled/bled_size.c

@@ -15,8 +15,6 @@
 #include "bb_archive.h"
 #include "bled.h"
 
-typedef int64_t(*get_uncompressed_size_t)(int fd);
-
 /* -------------------------------------------------------------------------
  * Internal helpers
  * ---------------------------------------------------------------------- */
@@ -702,6 +700,60 @@ static int64_t get_uncompress_size_zstd(int fd)
 	return (int64_t)size;
 }
 
+#if defined(BLED_EXPECT_DISK_IMAGE)
+extern progress_t bled_progress;
+extern unpacker_t unpacker[BLED_COMPRESSION_MAX];
+int64_t get_uncompressed_size_from_disk_image(int fd, int type)
+{
+	progress_t old_bled_progress = bled_progress;
+	int64_t size = DECOMP_SIZE_UNKNOWN;
+	uint8_t buf[8192];
+	transformer_state_t xstate;
+
+	bled_progress = NULL;	/* Can't have progress on this operation */
+	init_transformer_state(&xstate);
+	xstate.src_fd = fd;
+	xstate.dst_fd = -1;
+	xstate.mem_output_buf = buf;
+	xstate.mem_output_size = 0;
+	xstate.mem_output_size_max = sizeof(buf);
+
+	if (setjmp(bb_error_jmp))
+		goto out;
+
+	lseek(fd, 0, SEEK_SET);
+	size = unpacker[type](&xstate);
+	if (size != sizeof(buf) || buf[0x1fe] != 0x55 || buf[0x1ff] != 0xaa) {
+		size = DECOMP_SIZE_UNKNOWN;
+		goto out;
+	}
+	if (buf[0x1be] == 0x00 && buf[0x1c2] == 0xee) {
+		/* 
+		 * Protective EFI MBR => look for the primary GPT, which'll also give us the sector size
+		 * The address of the backup GPT is assumed to be the last LBA for the disk
+		 */
+		if (memcmp("EFI PART", &buf[0x200], 8) == 0)
+			size = (get_le64(&buf[0x220]) + 1) * 512;
+		else if (memcmp("EFI PART", &buf[0x1000], 8) == 0)
+			size = (get_le64(&buf[0x1020]) + 1) * 4096;
+		else
+			bb_error_msg("Could not locate primary GPT");
+	} else if (buf[0x1be] == 0x80) {
+		/* Regular bootable MBR => compute the max LBA (using primary partitions only) */
+		uint32_t max_lba = 1;
+		for (int i = 0; i < 4; i++)
+			max_lba = MAX(max_lba, get_le32(&buf[0x1be + 0x10 * i + 8]) + get_le32(&buf[0x1be + 0x10 * i + 0xc]));
+		size = (max_lba + 1) * 512;	/* assume 512-byte sectors for anything MBR based */
+		if (size < 4096)
+			size = DECOMP_SIZE_UNKNOWN;
+	}
+
+out:
+	bled_progress = old_bled_progress;
+	return size;
+}
+#endif
+
 static get_uncompressed_size_t _get_uncompressed_size[BLED_COMPRESSION_MAX] = {
 	get_uncompress_size_none,
 	get_uncompress_size_zip,
@@ -718,13 +770,11 @@ static get_uncompressed_size_t _get_uncompressed_size[BLED_COMPRESSION_MAX] = {
 /* Get the decompressed size of file 'fd', compressed using 'type' */
 int64_t get_uncompressed_size(int fd, int type)
 {
-	int64_t size = -1;
-
-	if ((type < 0) || (type >= BLED_COMPRESSION_MAX)) {
-		bb_error_msg("Unsupported compression format");
-		return -1;
-	}
-	size = _get_uncompressed_size[type](fd);
+	int64_t size = _get_uncompressed_size[type](fd);
+#if defined(BLED_EXPECT_DISK_IMAGE)
+	if (size < 0)
+		size = get_uncompressed_size_from_disk_image(fd, type);
+#endif
 
 	/* Make sure to reset our file pointer */
 	lseek(fd, 0, SEEK_SET);

src/bled/decompress_unzstd.c

@@ -119,8 +119,8 @@ unpack_zstd_stream_inner(transformer_state_t *xstate,
 IF_DESKTOP(long long) int FAST_FUNC
 unpack_zstd_stream(transformer_state_t *xstate)
 {
-	const size_t in_allocsize = roundupsize(ZSTD_DStreamInSize(), 1024),
-		   out_allocsize = roundupsize(ZSTD_DStreamOutSize(), 1024);
+	const size_t in_allocsize = roundupsize(ZSTD_DStreamInSize(), SECTOR_ALIGNMENT),
+		   out_allocsize = roundupsize(ZSTD_DStreamOutSize(), SECTOR_ALIGNMENT);
 
 	IF_DESKTOP(long long) int result;
 	void *out_buff;

src/db.h

@@ -84,6 +84,7 @@ static uint8_t sha256db[] = {
 	0x82, 0x11, 0xfa, 0xe8, 0xaf, 0xf0, 0x23, 0x3f, 0x05, 0xa8, 0xb7, 0x8c, 0x58, 0x15, 0x25, 0xe2, 0x81, 0xac, 0x98, 0x23, 0x54, 0xa8, 0xc4, 0x3b, 0xb4, 0x96, 0x5e, 0x61, 0xdc, 0x98, 0xb4, 0x62, // syslinux-6.03/pre8/ldlinux.bss
 	0x83, 0x57, 0xaa, 0xd3, 0x6a, 0xec, 0x68, 0x21, 0xcb, 0xf2, 0x17, 0x4d, 0xb5, 0xd2, 0x09, 0xef, 0x2c, 0xd2, 0x62, 0x88, 0x12, 0x39, 0xeb, 0xc3, 0xf4, 0xc1, 0xcf, 0x55, 0xab, 0x10, 0xee, 0x55, // grub-2.12~rc1/core.img
 	0x83, 0x9b, 0xd0, 0x8a, 0xcb, 0x68, 0x47, 0xd6, 0x55, 0x07, 0xf1, 0x4e, 0x7a, 0x55, 0x6e, 0x91, 0xe6, 0x12, 0x9c, 0x47, 0x86, 0x3f, 0x7d, 0x61, 0xe2, 0xce, 0x6d, 0xb7, 0x8d, 0xf3, 0xd2, 0x3f, // syslinux-6.03/pre9/ldlinux.bss
+	0x84, 0x73, 0x50, 0x4a, 0x84, 0x9c, 0x89, 0x83, 0x29, 0xcb, 0x90, 0x92, 0xf2, 0x5e, 0x26, 0x9d, 0x4e, 0x19, 0x3b, 0xc7, 0x72, 0xf8, 0x48, 0x9f, 0xa2, 0xc5, 0xd5, 0xa5, 0xd2, 0xd8, 0x87, 0x74, // grub-2.12-nonstandard-gdie/core.img
 	0x87, 0xaa, 0x91, 0xf8, 0x7f, 0xba, 0x5f, 0x31, 0x79, 0x43, 0x08, 0xda, 0xa4, 0xa4, 0x8d, 0xad, 0x6c, 0xf6, 0xfa, 0x34, 0x26, 0x4d, 0x66, 0xb8, 0x84, 0xb8, 0xb9, 0xdc, 0x96, 0x42, 0xed, 0x86, // syslinux-5.02/ldlinux.sys
 	0x88, 0x14, 0xe5, 0x76, 0xab, 0xc1, 0xaa, 0x44, 0xdd, 0xe9, 0x43, 0xb0, 0xca, 0xae, 0xe8, 0x33, 0xa5, 0x81, 0x01, 0x42, 0x61, 0x4a, 0xde, 0xeb, 0x4c, 0xc7, 0x25, 0xe7, 0x8a, 0x50, 0x45, 0xb7, // syslinux-6.03/ldlinux.bss
 	0x8b, 0x93, 0x7e, 0x5e, 0x8b, 0xae, 0x5a, 0xf8, 0xc8, 0x95, 0x63, 0xc0, 0x0e, 0x9c, 0xaf, 0xc6, 0xcd, 0x7c, 0x2c, 0x80, 0x8a, 0xda, 0x7b, 0xf4, 0xad, 0x51, 0x08, 0xda, 0x3e, 0x51, 0xcd, 0x70, // grub-2.00-22/core.img

src/drive.c

@@ -1765,11 +1765,15 @@ const char* GetFsName(HANDLE hPhysical, LARGE_INTEGER StartingOffset)
 	if (buf == NULL)
 		goto out;
 
-	// 1. Try to detect ISO9660/FAT/exFAT/NTFS/ReFS through the 512 bytes superblock at offset 0
+	// 1. Try to detect ISO9660/FAT/exFAT/NTFS/ReFS/SquashFS through the 512 bytes superblock at offset 0
 	if (!SetFilePointerEx(hPhysical, StartingOffset, NULL, FILE_BEGIN))
 		goto out;
 	if (!ReadFile(hPhysical, buf, sector_size, &size, NULL) || size != sector_size)
 		goto out;
+	if (memcmp("hsqs", buf, 4) == 0) {
+		ret = "SquashFS";
+		goto out;
+	}
 	if (strncmp("CD001", &buf[0x01], 5) == 0) {
 		ret = "ISO9660";
 		goto out;

src/rufus.c

@@ -1391,6 +1391,8 @@ DWORD WINAPI ImageScanThread(LPVOID param)
 				(img_report.compression_type != BLED_COMPRESSION_NONE && img_report.compression_type < BLED_COMPRESSION_MAX) ?
 				"compressed " : "", img_report.is_vhd ? "VHD" : "disk");
 		selection_default = BT_IMAGE;
+		if (img_report.projected_size > 0)
+			uprintf("  Size: %s (Projected)", SizeToHumanReadable(img_report.projected_size, FALSE, FALSE));
 	}
 
 	if (img_report.is_iso) {
@@ -1525,7 +1527,8 @@ static DWORD WINAPI BootCheckThread(LPVOID param)
 			Notification(MB_OK | MB_ICONERROR, lmprintf(MSG_358), lmprintf(MSG_359));
 			goto out;
 		}
-		if ((size_check) && (img_report.projected_size > (uint64_t)SelectedDrive.DiskSize)) {
+		/* Add 4 KB extra margin for VHD footers and so on */
+		if ((size_check) && (img_report.projected_size > ((uint64_t)SelectedDrive.DiskSize + 4 * KB))) {
 			// This ISO image is too big for the selected target
 			Notification(MB_OK | MB_ICONERROR, lmprintf(MSG_088), lmprintf(MSG_089));
 			goto out;

src/rufus.rc

@@ -33,7 +33,7 @@ LANGUAGE LANG_NEUTRAL, SUBLANG_NEUTRAL
 IDD_DIALOG DIALOGEX 12, 12, 232, 326
 STYLE DS_SETFONT | DS_MODALFRAME | DS_CENTER | WS_MINIMIZEBOX | WS_POPUP | WS_CAPTION | WS_SYSMENU
 EXSTYLE WS_EX_ACCEPTFILES
-CAPTION "Rufus 4.15.2393"
+CAPTION "Rufus 4.15.2396"
 FONT 9, "Segoe UI Symbol", 400, 0, 0x0
 BEGIN
     LTEXT           "Drive Properties",IDS_DRIVE_PROPERTIES_TXT,8,6,53,12,NOT WS_GROUP
@@ -409,8 +409,8 @@ END
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 4,15,2393,0
- PRODUCTVERSION 4,15,2393,0
+ FILEVERSION 4,15,2396,0
+ PRODUCTVERSION 4,15,2396,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -428,13 +428,13 @@ BEGIN
             VALUE "Comments", "https://rufus.ie"
             VALUE "CompanyName", "Akeo Consulting"
             VALUE "FileDescription", "Rufus"
-            VALUE "FileVersion", "4.15.2393"
+            VALUE "FileVersion", "4.15.2396"
             VALUE "InternalName", "Rufus"
             VALUE "LegalCopyright", "© 2011-2026 Pete Batard (GPL v3)"
             VALUE "LegalTrademarks", "https://www.gnu.org/licenses/gpl-3.0.html"
             VALUE "OriginalFilename", "rufus-4.15.exe"
             VALUE "ProductName", "Rufus"
-            VALUE "ProductVersion", "4.15.2393"
+            VALUE "ProductVersion", "4.15.2396"
         END
     END
     BLOCK "VarFileInfo"

src/vhd.c

@@ -99,6 +99,9 @@ static int8_t IsCompressedBootableImage(const char* path)
 			ErrorStatus = 0;
 			if (img_report.compression_type < BLED_COMPRESSION_MAX) {
 				bled_init(0, uprintf, NULL, NULL, NULL, NULL, &ErrorStatus);
+				dc = bled_get_uncompressed_size(path, file_assoc[i].type);
+				if (dc > 0)
+					img_report.projected_size = dc;
 				dc = bled_uncompress_to_buffer(path, (char*)buf, MBR_SIZE, file_assoc[i].type);
 				bled_exit();
 			} else if (img_report.compression_type == BLED_COMPRESSION_MAX) {